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@uit-th' ttttgi utwt @High JOHN u. FRE-r, or NEW y onto-N1 Y.

' Leiten Patent No. 64.965, ated May 21, 18er.

IMPROVEMENT 1N 'LAMP-Bonnets,

@lgs Stimuli rtfrrnhtti iu tinte Entert-grim aub nnliingtnrt nf tigeanun.

Be it known thatI, JOHNA FREY, of the city und countyof'New York, in theStat-'e of New York, have invented a. new and useful impronement inLamp-Burners, which is applicable ulsoto burners ot'- Huids'for.pro--Vduoing hentyan'd I do hereby declztie that the following is a..i`ull,clear, und exact description of the conetruction and operation ofthe'saine, reference being 'had to the'occomprmyingdrawings making part ofthis specification, in Which- 4 4 Figure 1 is a. vertical section of ztlamp-burner, showing thetop of the rick-tube marked a, and a side viewoi' the eonoidv cap, mn-rkedb b b. A din'phrngm'-ismnrked andnir-'inlets perforated in the shell oi' the lower section of the burnerare marked d d d d dd d, midfand g being lower and upper air-chambers.

Figure 2 represents the'burner with au end view of. theconod c'ap in'place. Figure 3 isl a, perspcct-iveview of -the conoid cnp, i n which arepresents the space fortlie wick-tulle. Eigure 4 is n' plane-'sectionof' 'the bottom of the burner, 'in which a represents the wcktube, c event-holes.

B'y menus of this device und arrnngement;,1 ina-ko two lseparanonir-chtimbers und two separate droughts I to supplyv nir for combustion:first, the usual chamber, uiarked'h h, supplying nir through 'cheuppersection oi' the shell ofthe burner; und, second, a. double airchu-inber,murked f'nnd g, formed by the con'oid cap b b Ii, divided trausverelyhy' the wire cloth orperforated -sh'ect metnl diaphragm c,.and suppliedwith uir through the perforntions'd tlddd d, in -lowersection of thes'hell nf-the burner, thus securing un 'additional sind independent Ydraught of nir. .;,T.he diaphragm. c issuhstituted'foutlic ordinary?plnte ncrijss--tlie low'er sectinnvof the burner the conoidcap'ent-irely coversthe diaphragm, rests 'upon the outer-' edge cri' it,and against the shell of the burner; fitting clnselyto the-insidethereof :rll around it, und riees nearly 'to thel top of thewicktuhc,closing around the latter within about un eighth pni't of aln inch,lenving :1n-:tir space of t'hut width between Aitnnd the tube..

The conoid ca.` erforms the oice ofl afe'himnev for-the loiveuorvdoiibleair-chambersv und It creates a p P @a draught through the holes d d dddd, and conducts the air togtlici-wtlinny vapor which muy :iriso from theoil reservoir through the vents c e directly upon the top of theVwick-tube anrl hnsc ofth'euine, whiehpfrom' the increased supply ofair, produecsmcre"perfect combustion ofthe oil o r other bnrni'ng'nifl,materially incrcufses the light;- bcsid'es verhich,4 is n deodorizer,ai; no unconeumed gus or vupor from the oil escapes into therooluLfwA-nothereffect of' this device is, that vthedruught'of' airconcentrated A upon the wick-tubo keeps thc tube 0001, so that the oilor burning fluid4 in the reservoir is not vapori'zed by the heat ofcombustion conducted -hy the tube os iii-ordinary immersi-and heucenlsooxplosionsfrom heated vuporsvare prevcntedf The oilice oi' thewire clothor prforuted diuphiagmis to diffus and equalirjerthe'ow of .nir undvapor, if any vapor there he, and ho :iid in maintaining equnlcomhustonand steady lightruhd ulso' to prevent/the ilulnc of the lump fromfollowing vapors or grises into the-reservoir undexiiloding the lump, asfrequently hap'pcus'witl the use of thc vented pluto of o rdinziryburners'. It ulso supporte the wick-,tube the sume as docs theusnalplafte What I cla-im as .my invention, and desire to secure 'byLetters Patent, is`

The combination o i the nir-cimmbersf :t'nd g, with the oirinlets d d,end perforated diaphragm c', arranged .und operating us and for thepurpose set forth. v v

A A JOHN A. FREY.

Witnesses:

JonN ALLEN',

Cuirs.l SEARS.

